WO2022205524A1 - 显示面板及显示装置 - Google Patents

显示面板及显示装置 Download PDF

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Publication number
WO2022205524A1
WO2022205524A1 PCT/CN2021/088069 CN2021088069W WO2022205524A1 WO 2022205524 A1 WO2022205524 A1 WO 2022205524A1 CN 2021088069 W CN2021088069 W CN 2021088069W WO 2022205524 A1 WO2022205524 A1 WO 2022205524A1
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WO
WIPO (PCT)
Prior art keywords
support
display panel
support portion
display
bending
Prior art date
Application number
PCT/CN2021/088069
Other languages
English (en)
French (fr)
Inventor
唐志舜
Original Assignee
武汉华星光电半导体显示技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 武汉华星光电半导体显示技术有限公司 filed Critical 武汉华星光电半导体显示技术有限公司
Publication of WO2022205524A1 publication Critical patent/WO2022205524A1/zh

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Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/549Organic PV cells

Definitions

  • the present application relates to the field of display technology, and in particular, to a display panel and a display device.
  • a part of the display screen of the display panel is bent to the bottom of the display panel or a partial area of the bottom of the display panel by adopting an outer bending design, which can reduce the size of the lower frame of the display device.
  • a supporting steel plate is arranged on the back of the display panel. Therefore, in the event of a drop, impact, etc., the display screen at the bottom end of the display device is subjected to a greater impact force, while the impact resistance of the supporting steel plate is poor, which further aggravates the display screen at the bottom end of the display device. Risk of failure by impact, serious problems that can lead to display failure.
  • Embodiments of the present application provide a display panel and a display device, which can reduce the risk of display failure of the display panel caused by impact on the display panel during use.
  • An embodiment of the present application provides a display panel, including: a panel body and a support member.
  • the panel body includes a first flexible display part and a second bending part located at an end of the first flexible display part;
  • the support member includes a support layer, and the support layer includes a first support portion and a second support part, the first support part is supported on one side of the first flexible display part, and the second support part is in a bent state and supported on one side of the second bending part.
  • the stress buffering capacity of the first supporting portion is smaller than the stress buffering capacity of the second supporting portion.
  • the elastic modulus of the first support portion is greater than the elastic modulus of the second support portion.
  • the material of the first support portion includes a stainless steel plate
  • the preparation material of the second support portion includes foam
  • the first support portion and the second support portion are arranged at intervals.
  • the first support portion and the second support portion are connected to each other.
  • the support member is provided with an opening passing through the first support portion, and the second support portion is located in the opening.
  • the thickness of the second support portion is greater than or equal to the thickness of the first support portion.
  • the thickness of the second support portion is 1 to 1.2 times the thickness of the first support portion.
  • the support member further includes a connection layer between the support layer and the panel body.
  • the support member is provided with an opening passing through the support layer and the connection layer, and the second support portion is located in the opening.
  • connection layer includes a first connection layer and a second connection layer
  • first connection layer is located between the second connection layer and the support layer
  • second connection layer is located between the first connection layer and the panel body
  • the thickness of the second support portion is 1 to 1.2 times the sum of the thickness of the first support portion and the thickness of the connection layer.
  • the first flexible display part when the first flexible display part is in a curved state, the first flexible display part includes a curved part, and the bending direction of the curved part is the same as that of the second curved part. The bending direction of the folded portion is different.
  • the panel body further includes a third display part, and the second bending part is located between the first flexible display part and the third display part, so The third display part is opposite to the first flexible display part, the first support part is supported on the side of the first flexible display part and the third display part is close to the first flexible display side of the department.
  • opposite two ends of the second support portion are respectively supported on the one side of the first flexible display portion and the third display portion side.
  • the first support portion includes a plurality of first hollow portions
  • the second support portion includes a second hollow portion
  • the first hollow portions The density of the hollow holes is different from the density of the hollow holes of the second hollow part.
  • the supporting layer further includes a filling portion located in the second hollow portion, wherein the hardness of the second supporting portion is smaller than that of the filling portion.
  • An embodiment of the present application provides a display device, including any of the above-mentioned display panels.
  • the display panel includes: a panel main body and a support member.
  • the panel body includes a first flexible display part and a second bending part located at an end of the first flexible display part;
  • the support member includes a support layer, and the support layer includes a first support portion and a second support part, the first support part is supported on one side of the first flexible display part, and the second support part is in a bent state and supported on one side of the second bending part.
  • the stress buffering capacity of the first support portion is smaller than the stress buffering capacity of the second support portion, so that the impact resistance of the second bending portion can be improved by the second support portion, and the display panel can be reduced.
  • FIGS. 1A to 1C are schematic structural diagrams of a display panel provided by an embodiment of the present application.
  • FIGS. 2A to 2B are schematic structural diagrams of a panel body provided by an embodiment of the present application.
  • 3A to 3D are schematic structural diagrams of a support member provided by an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a first hollow portion provided by an embodiment of the present application.
  • 5A to 5F are schematic structural diagrams of a second hollow portion provided by an embodiment of the present application.
  • FIGS. 1A to 1C are schematic structural diagrams of a display panel provided by an embodiment of the present application
  • FIGS. 2A to 2B are schematic structural diagrams of a panel body provided by an embodiment of the present application
  • FIGS. 3A to 3D are provided by an embodiment of the present application.
  • Embodiments of the present application provide a display panel.
  • the display panel includes a self-luminous display panel, a quantum dot display panel, and the like.
  • the display panel includes a panel body 101 . Further, referring to FIGS. 2A-2B , the display panel is a self-luminous display panel, and the panel body 101 includes a substrate 1011 , a driving array layer 1012 and a light-emitting device 1013 on the substrate 1011 .
  • the driving array layer 1012 includes a plurality of transistors, and the transistors include field effect transistors.
  • the transistor includes a thin film transistor.
  • the transistors include oxide transistors and silicon transistors.
  • the light-emitting device 1013 includes organic light-emitting diodes, sub-millimeter light-emitting diodes, micro light-emitting diodes, and the like.
  • the light emitting device 1013 includes an anode 1013 a , a cathode 1013 c and a light emitting layer 1013 b , the light emitting layer 1013 b is located between the anode 1013 a and the cathode 1013 c and is located in a pixel definition area of the pixel definition layer 1014 .
  • the display panel may further include a passive light emitting display panel.
  • the panel body 101 may include devices such as liquid crystals, driving arrays, and the like.
  • the display panel further includes a support member 102 located on one side of the panel body 101 , and the support member 102 is used to provide support for the panel body 101 .
  • the panel body 101 includes a first surface 100a and a second surface 100b opposite to each other. If the first surface 100a is the display side of the display panel, the support member 102 and the second surface 100b adjacent.
  • the panel body 101 includes a first flexible display part 101a and a second bending part 101b located at an end of the first flexible display part 101a.
  • the second bending portion 101b has a fixed curvature to keep the second bending portion 101b in a static bending state, or the second bending portion 101b has a variable curvature, so that the second bending portion 101b has a variable curvature.
  • the second bending portion 101b can realize dynamic bending.
  • the second bending portion 101b is located on the bottom side of the display panel, and the display panel can display at the second bending portion 101b.
  • the support member 102 includes a support layer 1021, the support layer 1021 includes a first support portion 1021a and a second support portion 1021b, and the first support portion 1021a is supported on the first support portion 1021a.
  • the second supporting portion 1021b is in a bent state, and is supported on one side of the second bending portion 101b.
  • the stress buffering capacity of the first supporting portion 1021a is smaller than the stress buffering capacity of the second supporting portion 1021b, so as to provide support for the second bending portion 101b through the second supporting portion 1021b, and improve the The impact resistance of the display panel at the second bending portion 101b avoids the problem of display failure of the display panel when the second bending portion 101b is subjected to impact, impact, or the like.
  • the elastic modulus of the first support portion 1021a is greater than the elastic modulus of the second support portion 1021b, so that the second support portion 1021b undergoes a certain elastic deformation when subjected to an impact force, reducing the The impact force affects the display panel, and after the impact force disappears, the deformed part can be restored to the original state, and the support for the second bending portion 101b can be maintained.
  • the supporting material of the first supporting portion 1021a includes a stainless steel plate; the second bending portion 101b is kept in a static bending state, and the preparation material of the second supporting portion 1021b includes foam and other materials with cushioning properties. Material.
  • the softness and hardness of the material are distinguished by 25% compressive load (that is, the resilience CFD when the thickness deformation rate is 25%).
  • the preparation material of the second support portion 1021b is between 0.1 MPa and 1 MPa when corresponding to a 25% compressive load. Further, the 25% compressive load corresponding to the preparation material of the second support portion 1021b is between 0.5 MPa and 1 MPa.
  • first support portion 1021a and the second support portion 1021b may be spaced apart or connected to each other.
  • the support layer 1021 further includes a spacer 1021c located between the first support portion 1021a and the second support portion 1021b, so as to prevent the display panel from being subjected to When impacted, the impact force is transmitted from the second support portion 1021b to the first support portion 1021a, thereby affecting the first flexible display portion 101a.
  • the first support portion 1021a and the second support portion 1021b can be fabricated step by step on the side of the first flexible display portion 101a, and the second support portion 1021b is fabricated on the side of the first flexible display portion 101a.
  • the one side of the second bent portion 101b Therefore, when manufacturing the first support portion 1021a and the second support portion 1021b, there will be a tolerance in manufacturing accuracy (that is, the first support portion 1021a is fabricated on the side of the first flexible display portion 101a, and /or when the second support portion 1021b is prepared on the one side of the second bending portion 101b, there is a certain position offset), resulting in the appearance of the first support portion 1021a and the second support portion 1021b the problem of mutual interference.
  • the spacing portion 1021c is located between the first support portion 1021a and the second support portion 1021b, so the display panel can eliminate the difference between the first support portion 1021a and the first support portion 1021a caused by the tolerance of manufacturing precision.
  • the aforementioned second support portion 1021b has the problem of mutual interference.
  • the supporting layer 1021 further includes a connecting portion 1021d located between the first supporting portion 1021a and the second supporting portion 1021b, and the connecting portion 1021d is located in the spacing portion 1021c, as shown in FIG. 3C .
  • the panel body 101 is fully supported by the first support portion 1021a, the second support portion 1021b and the connection portion 1021d.
  • the preparation material of the connecting portion 1021d includes foam material, pressure-sensitive adhesive, optical adhesive and other materials.
  • the first flexible display part 101a when the first flexible display part 101a is in a bent state, the first flexible display part 101a further includes a bending part 1011a.
  • the curved portion 1011a has a fixed curvature to keep the curved portion 1011a in a static bending state, or the curved portion 1011a has a variable curvature, so that the curved portion 1011a can achieve dynamic bending.
  • the bending direction of the bending portion 1011a is different from the bending direction of the second bending portion 101b.
  • the curved portion 1011a may be directly adjacent to the second curved portion 101b, or the first flexible display portion 101a may further include a non-contact between the curved portion 1011a and the second curved portion 101b. Bending portion 1011d.
  • FIG. 4 is a schematic structural diagram of a first hollow portion provided by an embodiment of the present application; please refer to FIGS. 1A , 3A to 3C and FIG. 4 , the first support portion 1021a includes a plurality of first hollow portions H1, a plurality of the first hollow parts H1 are provided corresponding to the curved part 1011a, so that the first support part 1021a can support the curved part 1011a and at the same time ensure that the curved part 1011a has a certain bending Folding performance.
  • each of the first hollow portions H1 includes a rounded design to prevent the end portion of the first hollow portion H1 from being bent due to bending stress when the end portion of the first hollow portion H1 is designed at a right angle. Factors such as cracks appear at right angles.
  • each of the first hollow portions H1 includes a first middle portion 1011b and a second end portion 1011c located on both sides of the first middle portion 1011b.
  • the second end portion 1011c is an arc Shaped or wavy, etc.
  • the first intermediate portion 1011b has a shape such as a straight line, a wave shape, or the like.
  • each of the first hollow parts H1 has a first length direction and a first width direction intersecting with the first length direction, and two adjacent first hollow parts H1 are in the first length direction.
  • There is a first pitch P1 and two adjacent first hollow portions H1 have a second pitch P2 in the first width direction.
  • the first length direction is parallel to the bending center line L1 of the bending portion 1011a
  • the first spacing P1 may be greater than or equal to 0.1 mm
  • the second spacing P2 may be greater than or equal to 0.1 mm and less than or equal to 5mm, so that the first support portion 1021a can take into account both the support performance of the curved portion 1011a and the bending performance of the curved portion 1011a.
  • the first pitch P1 may be greater than or equal to 0.2 mm.
  • the plurality of first hollow portions H1 when the curved portion 1011a is in a straight state, the plurality of first hollow portions H1 have a first width W1 in the first width direction, and the curved portion 1011a is in the first width direction.
  • the first width direction has a second width W2.
  • the first width W1 is greater than or equal to the second width W2, so that when the bending portion 1011a is bent, the bending stress is reduced for the first flexible display portion 101a between the bending portion 1011a and the bending portion 1011a. The influence of the junction of the adjacent portions of the ends of the curved portion 1011a.
  • the arrangement positions of the plurality of the first hollow portions H1 may be flush or staggered.
  • the flush arrangement includes that the plurality of first hollow portions H1 are arranged flush in the first length direction, and/or are arranged flush in the first width direction.
  • the staggered arrangement includes a plurality of the first hollow portions H1 staggered in the first length direction, and/or staggered in the first width direction.
  • each of the first hollow portions H1 has a third width W3 in the first width direction, and the third widths W3 of a plurality of the first hollow portions H1 may be the same. or different. Further, the third widths W3 of the plurality of first hollow portions H1 gradually decrease as the first hollow portions H1 move away from the bending center line L1 . Further, among the plurality of first hollow portions H1, the first hollow portion corresponding to the junction of the curved portion 1011a of the first flexible display portion 101a and the adjacent portion thereof is the first hollow portion. The third width W3 is smaller than or equal to the third width W3 of the first hollow portion of the plurality of first hollow portions H1 corresponding to the bending center line L1 .
  • FIGS. 5A to 5F are schematic structural diagrams of the second hollow portion provided by the embodiment of the present application.
  • the second support portion 1021 b includes a plurality of second hollow portions H2 .
  • the plurality of second hollow portions H2 are squeezed when being impacted, causing deformation of the second support portion 1021b, thereby consuming impact energy, which is beneficial to further improve the stress buffering capability of the second support portion 1021b.
  • the density of the hollow holes of the first hollow part H1 and the density of the hollow holes of the second hollow part H2 are different or the same.
  • the supporting layer 1021 further includes a filling portion 1021e located in the second hollow portion H2, and the hardness of the filling portion 1021e is greater than or equal to the hardness of the second supporting portion 1021b, so as to pass the second hollow portion H2.
  • the second support portion 1021b absorbs impact stress, and the filling portion 1021e reduces the probability of local deformation of the display panel at the second bending portion 101b, thereby improving the impact resistance of the second bending portion 101b.
  • the supporting performance of the second supporting portion 1021b for the second bending portion 101b is improved.
  • the preparation material of the filling portion 1021e is between 0.1 MPa and 1 MPa when corresponding to a 25% compressive load. Further, the preparation material of the second support portion 1021b is 0.2 MPa or less when corresponding to 25% compressive load, and the preparation material of the filling portion 1021e is between 0.5 MPa and 1 MPa when corresponding to 25% compressive load.
  • the shapes of the plurality of second hollow portions H2 include a circle, a rounded rectangle, an ellipse, an arc, and a wave. shape etc.
  • the shape of the second hollow portion H2 is circular, the filling portion 1021e located in the second hollow portion H2 is also circular, and the aperture of the second hollow portion is larger than or equal to 0.8mm and less than or equal to 2mm.
  • each of the second hollow portions H2 has a second length direction x2 and a second width direction y2 intersecting with the second length direction x2.
  • the second width direction y2 is parallel to the bending center line L2 of the second bending portion 101b
  • the distance P3 between any two adjacent second hollow portions H2 along the second width direction y2 Greater than or equal to 1mm and less than or equal to 3mm
  • the distance P4 between any two adjacent second hollow parts H2 along the second length direction x2 is greater than or equal to 1mm and less than or equal to 3mm, in order to avoid the first
  • the arrangement density of the two hollow parts H2 in the second support part 1021b is too dense or too sparse, which affects the impact resistance performance of the second support part 1021b or the resistance performance of the filling part 1021e to local deformation.
  • the second bending portion 101b when the second bending portion 101b is in a straight state, in the direction extending along the bending center line L2, the second bending portion 101b has a fourth width W4, and in a top view, Each of the second hollow portions H2 overlapping the bending center line L2 has a fifth width W5 along the second width direction y2; wherein, the fourth width W4 is greater than the fifth width W5, As shown in FIGS. 5A-5B ; so that when the display panel is impacted or hit, the filling portion 1021e and the second support portion 1021b act together to reduce the impact of the impact force on the display panel. Compared with the case where the impact force only acts on the filling portion 1021e when the display panel is impacted, the impact of the impact force on the display panel can be further reduced.
  • the shapes of the plurality of second hollow parts H2 are different. Further, the extending directions of the plurality of second hollow portions H2 are different or the same. Further, among the plurality of second hollow parts H2, the second hollow part away from the bending center line L2 extends along the second width direction y2, as shown in FIG.
  • the filling portion located in the second hollow portion of the plurality of second hollow portions H2 that is far from the bending center line L2 The degree of curvature of the surface of 1021e is small, which reduces the influence of bending stress on the filling part 1021e located in the second hollow part far from the bending center line L2 among the plurality of second hollow parts H2.
  • the second hollow part H21 of the plurality of second hollow parts H2 close to the bending center line L2 is wavy and extends along the second length direction x2 to increase the second hollow part H21.
  • the filling portion 1021e and the second supporting portion 1021b in the second hollow portion H21 are at risk of peeling off.
  • a plurality of the second hollow parts H2 are respectively located on both sides of the bending center line L2, as shown in FIG. 5D, so as to avoid the bending stress when the second bending part 101b is in the bending state.
  • the filling part 1021e and the second supporting part 1021b have different acting forces, which causes the problem of peeling of the filling part 1021e and the second supporting part 1021b.
  • the shape and size of the first hollow portion H1 and the second hollow portion H2 may be the same or different.
  • a plurality of the second hollow parts H2 may be evenly distributed, or arranged according to a specific rule.
  • the arrangement density of the plurality of second hollow portions H2 on the second support portion 1021b gradually increases with the direction away from the bending center line L2, as shown in FIG. 5E;
  • the part of the bending center line L2 has better impact resistance than the corresponding part of the display panel that is far away from the bending center line L2, so that the part of the display panel that is greatly affected by the impact force can be effectively Absorb impact force and reduce the impact of impact stress on the display panel.
  • the sizes of the plurality of second hollow parts H2 may be the same or different, for example, the sizes of the plurality of second hollow parts H2 gradually increase with the direction away from the bending center line L2, as shown in FIG. 5E .
  • the impact resistance of the second support portion 1021b of the portion of the display panel corresponding to the bending center line L2 is better than the local deformation resistance of the filling portion 1021e, thereby better absorbing Impact stress at the bending centerline L2.
  • some of the second hollow portions H2 may extend from the second bending portion 101b to the first flexible display portion 101a, which will not be repeated here.
  • the second support portion 1021b further includes a third hollow portion H3, as shown in FIG. 5F , the third hollow portion H3 connects any two of the second hollow portions H2, and the filling portion 1021e may be located at In the third hollow portion H3, when the second bending portion 101b of the display panel is impacted, the second supporting portion 1021b and the filling in the third hollow portion H3 pass through the second supporting portion 1021b.
  • the portion 1021e and the filling portion 1021e located in the second hollow portion H2 disperse the impact force, reduce the force per unit area, and further improve the impact deformation resistance of the second bending portion 101b.
  • the supporting member 102 is provided with an opening passing through the first supporting portion 1021a, and the second supporting portion 1021b is located in the opening, so that the first supporting portion 1021a and the The second support parts 1021b jointly realize the support for the display panel.
  • the preparation material of the second support portion 1021b includes foam material.
  • foam material with high resilience CFD that is, the force of the foam in response to the applied object after the foam is compressed to a certain proportion and reaches the mechanical balance
  • the material of the foam material with small resilience CFD is softer.
  • the resilience CFD is proportional to the compression ratio K. Therefore, in order to make the second support portion 1021b have better cushioning performance, the compression ratio of the second support portion 1021b should not exceed 20%.
  • the compression ratio K 100%*(h0-h1)/h0; among them, h0 represents the thickness of the foam material before compression, and h1 represents the thickness of the foam material after compression.
  • the compression ratio K is inversely proportional to the thickness h0 of the foam material before compression, that is, the larger h0, the smaller K, the smaller the resilience, and the softer the material of the foam material, so the second support portion 1021b can be
  • the thickness of the first support portion 1021a is greater than or equal to the thickness of the first support portion 1021a, so that the second support portion 1021b can absorb stress when the display panel is squeezed or impacted.
  • the thickness of the second support portion 1021b is 1-1.2 times the thickness of the first support portion 1021a.
  • the thickness of the first support portion 1021a is greater than or equal to 50 microns and less than or equal to 150 microns
  • the thickness of the second support portion 1021b is greater than or equal to 50 microns and less than or equal to 180 microns.
  • the support member 102 further includes a connection layer, and the connection layer is located between the support layer 1021 and the panel body 101 .
  • the first support portion 1021a may adopt a single-layer design, that is, the support layer 1021 as shown in FIGS. 3A-3B includes the first support portion 1021a; a multi-layer design may also be adopted, that is, as shown in FIG. 3C Both the connection layer and the first support layer 1021 shown in FIG. 3D include the first support portion 1021a.
  • the support member 102 is provided with an opening passing through the support layer 1021 and the connection layer, and the second support portion 1021b is located in the opening.
  • the compression ratio of the second support portion 1021b should not exceed 20%, and the thickness of the second support portion 1021b should be greater than or equal to the The sum of the thicknesses of the first support portion 1021a and the connection layer.
  • the thickness of the second support portion 1021b is 1 to 1.2 times the sum of the thickness of the first support portion 1021a and the thickness of the connection layer.
  • connection layer includes a first connection layer 1022 and a second connection layer 1023
  • first connection layer 1022 is located between the second connection layer 1023 and the support layer 1021
  • second connection layer The layer 1023 is located between the first connection layer 1022 and the panel body 101 .
  • the hardness of the first connection layer 1022 is smaller than the hardness of the second support portion 1021b.
  • the preparation material of the first connection layer 1022 is below 0.2 MPa when corresponding to a 25% compressive load
  • the preparation material of the second support portion 1021b is between 0.5 MPa and 1 MPa when corresponding to a 25% compressive load.
  • the preparation materials of the second connection layer 1023 and the support layer 1021 are different from the preparation materials of the first connection layer 1022 .
  • the preparation materials of the first connection layer 1022 and the second support portion 1021b include foam materials with different hardness; further, the foam materials include polyethylene foam (such as PE foam, EVA foam, etc.) cotton, etc.), rubber foam (such as CR foam, EPDM foam, etc.), etc.
  • the opening may partially penetrate the connecting layer, or may completely penetrate the connecting layer. Specifically, when the opening portion penetrates through the connection layer, the opening may only penetrate through the first connection layer 1022.
  • the The thickness of the second support portion 1021b is 1 to 1.2 times the sum of the thickness of the first support portion 1021a and the thickness of the first connection layer 1022 .
  • the thickness of the first support portion 1021a is greater than or equal to 50 microns and less than or equal to 150 microns, and the thickness of the first connection layer 1022 is greater than or equal to 50 microns and less than or equal to 100 microns, then The thickness of the second support portion 1021b is greater than or equal to 100 microns and less than or equal to 300 microns.
  • the thickness of the second support portion 1021b is equal to the thickness of the first support portion
  • the thickness of 1021a, the first connection layer 1022 and the thickness of the second connection layer 1023 is 1 to 1.2 times the sum of the thicknesses.
  • the spacer portion 1021c may be disposed between the first connection layer 1022, the first support portion 1021a and the second support portion 1021b, as shown in FIG. 3D, so as to pass through the second support portion 1021b.
  • the connection layer 1023 and the second support portion 1021b provide complete support, and the effect of bending stress on the second support portion 1021b is reduced through the spacer portion 1021c.
  • the panel body 101 further includes a third display portion 101c, and the second bending portion 101b is located between the first flexible display portion 101a and the third display portion 101c,
  • the third display part 101c is opposite to the first flexible display part 101a, and the first support part 1021a is supported on the side of the first flexible display part 101a and the third display part 101c is close to the side One side of the first flexible display part 101a.
  • the third display portion 101c is opposite to the first flexible display portion 101a, indicating that in a top view, the third display portion 101c and the first flexible display portion 101a are partially overlapped. That is, when the second bending part 101b is in the bending state, the third display part 101c is bent to the bottom of the first flexible display part 101a.
  • opposite end portions of the second support portion 1021b are respectively supported on the one side of the first flexible display portion 101a and the one side of the third display portion 101c, so that the The second support portion 1021b can improve the impact resistance of the second bending portion 101b, and at the same time reduce the impact of the impact force on the first flexible display portion 101a and the third display portion 101c.
  • the display panel further includes a bonding portion, the bonding portion is located at an end of the third display portion 101c away from the second bending portion 101b, and the display panel includes a bonding portion at the bonding portion.
  • Devices such as drive chips and circuit boards used to make the display panel emit light.
  • the display panel may include a plurality of the second bending portions 101b, as shown in FIG. 1C .
  • the display panel further includes a fourth display portion 101d, and the fourth display portion 101d is located between two adjacent second bending portions 101b.
  • the fourth display portion 101d may include the curved portion 1011a, and the fourth display portion 101d may also be a display portion kept in a straight state. If both the second bending portion 101b and the fourth display portion 101d are close to the bottom side of the display panel in a top view, the second supporting portion 1021b can correspond to the second bending portion 101b and the fourth display portion 101d.
  • the fourth display portion 101d is provided.
  • the display panel further includes a polarizer 103 , an optical adhesive 104 , a package cover 105 and the like located on the panel body 101 .
  • the packaging cover plate 105 includes transparent polyimide film or ultra-thin glass; the display panel further includes sensor touch electrodes, color filters, sensors and other parts not shown.
  • the display panel further includes a middle frame 106 supporting the panel main body 101 and the like.
  • the present application also provides a display device comprising the above-mentioned display panel.

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Abstract

一种显示面板及显示装置,显示面板包括支撑于第一柔性显示部(101a)的一侧的第一支撑部(1021a),以及处于弯折状态并支撑于第二弯折部(101b)的一侧的第二支撑部(1021b)。第一支撑部(1021a)的应力缓冲能力小于第二支撑部(1021b)的应力缓冲能力,以通过第二支撑部(1021b)提高第二弯折部(101b)的耐冲击性能,降低因第二弯折部(101b)受冲击导致显示面板出现失效的风险。

Description

显示面板及显示装置 技术领域
本申请涉及显示技术领域,特别涉及一种显示面板及一种显示装置。
背景技术
在显示装置中采用外弯折设计将显示面板的部分显示屏幕弯折至显示面板底部,或弯折至显示面板底部的局部区域,可降低显示装置的下边框尺寸。但由于保持弯折状态的显示屏幕处于显示装置底端的最外侧,且为满足弯折性能的要求,会在显示面板背部设置支撑钢板。因此在出现跌落、撞击等情况时,处于显示装置底端最外侧的显示屏幕受到的冲击力较大,而支撑钢板的抗冲击力较差,更加剧了处于显示装置底端最外侧的显示屏幕受冲击失效的风险,严重的可导致显示失效的问题。
技术问题
本申请实施例提供一种显示面板及一种显示装置,可降低所述显示面板在使用过程中受冲击导致显示面板出现显示失效的风险。
技术解决方案
本申请实施例提供一种显示面板,包括:面板主体及支撑件。所述面板主体包括第一柔性显示部和位于所述第一柔性显示部的端部的第二弯折部;所述支撑件包括支撑层,所述支撑层包括第一支撑部和第二支撑部,所述第一支撑部支撑于所述第一柔性显示部的一侧,所述第二支撑部处于弯折状态,并支撑于所述第二弯折部的一侧。其中,所述第一支撑部的应力缓冲能力小于所述第二支撑部的应力缓冲能力。
可选地,在本申请的一些实施例中,所述第一支撑部的弹性模量大于所述第二支撑部的弹性模量。
可选地,在本申请的一些实施例中,所述第一支撑部的材料包括不锈钢板,所述第二支撑部的制备材料包括泡棉。
可选地,在本申请的一些实施例中,所述第一支撑部与所述第二支撑部之间间隔设置。
可选地,在本申请的一些实施例中,所述第一支撑部与所述第二支撑部之间相互连接。
可选地,在本申请的一些实施例中,所述支撑件设有贯穿所述第一支撑部的开口,所述第二支撑部位于所述开口内。
可选地,在本申请的一些实施例中,所述第二支撑部的厚度大于或等于所述第一支撑部的厚度。
可选地,在本申请的一些实施例中,所述第二支撑部的厚度为所述第一支撑部厚度的1倍~1.2倍。
可选地,在本申请的一些实施例中,所述支撑件还包括位于所述支撑层与所述面板主体之间的连接层。
可选地,在本申请的一些实施例中,所述支撑件设有贯穿所述支撑层和所述连接层的开口,所述第二支撑部位于所述开口内。
可选地,在本申请的一些实施例中,所述连接层包括第一连接层和第二连接层,所述第一连接层位于所述第二连接层与所述支撑层之间,所述第二连接层位于所述第一连接层与所述面板主体之间。
可选地,在本申请的一些实施例中,所述第二支撑部的厚度为所述第一支撑部厚度与所述连接层的厚度之和的1~1.2倍。
可选地,在本申请的一些实施例中,当所述第一柔性显示部处于弯曲状态时,所述第一柔性显示部包括弯曲部,所述弯曲部的弯曲方向与所述第二弯折部的弯折方向不同。
可选地,在本申请的一些实施例中,所述面板主体还包括第三显示部,所述第二弯折部位于所述第一柔性显示部与所述第三显示部之间,所述第三显示部与所述第一柔性显示部相对,所述第一支撑部支撑于所述第一柔性显示部的所述一侧和所述第三显示部的靠近所述第一柔性显示部的一侧。
可选地,在本申请的一些实施例中,所述第二支撑部的相对的两端部分别支撑于所述第一柔性显示部的所述一侧和所述第三显示部的所述一侧。
可选地,在本申请的一些实施例中,所述第一支撑部包括多个第一镂空部,所述第二支撑部包括第二镂空部,在单位面积内,所述第一镂空部的镂空孔的密度和所述第二镂空部的镂空孔的密度不同。
可选地,在本申请的一些实施例中,所述支撑层还包括位于所述第二镂空部内的填充部,其中,所述第二支撑部的硬度小于所述填充部的硬度。
本申请实施例提供一种显示装置,包括上述的任一种显示面板。
有益效果
相较于现有技术,本申请实施例提供的显示面板及显示装置,所述显示面板包括:面板主体及支撑件。所述面板主体包括第一柔性显示部和位于所述第一柔性显示部的端部的第二弯折部;所述支撑件包括支撑层,所述支撑层包括第一支撑部和第二支撑部,所述第一支撑部支撑于所述第一柔性显示部的一侧,所述第二支撑部处于弯折状态,并支撑于所述第二弯折部的一侧。其中,所述第一支撑部的应力缓冲能力小于所述第二支撑部的应力缓冲能力,以通过所述第二支撑部提高所述第二弯折部的耐冲击性能,降低所述显示面板在使用过程中,因所述第二弯折部受冲击导致显示面板出现失效的风险。
附图说明
图1A~图1C是本申请实施例提供的显示面板的结构示意图;
图2A~图2B是本申请实施例提供的面板主体的结构示意图;
图3A~图3D是本申请实施例提供的支撑件的结构示意图;
图4是本申请实施例提供的第一镂空部的结构示意图;
图5A~图5F是本申请实施例提供的第二镂空部的结构示意图。
本发明的实施方式
为使本申请的目的、技术方案及效果更加清楚、明确,以下参照附图并举实施例对本申请进一步详细说明。应当理解,此处所描述的具体实施例仅用以解释本申请,并不用于限定本申请。
请参阅图1A~图1C是本申请实施例提供的显示面板的结构示意图;图2A~图2B是本申请实施例提供的面板主体的结构示意图;图3A~图3D是本申请实施例提供的支撑件的结构示意图。本申请实施例提供一种显示面板。可选地,所述显示面板包括自发光显示面板、量子点显示面板等。
所述显示面板包括面板主体101。进一步地,请参阅图2A~图2B,所述显示面板为自发光显示面板,所述面板主体101包括衬底1011、位于所述衬底1011上的驱动阵列层1012及发光器件1013。其中,所述驱动阵列层1012包括多个晶体管,所述晶体管包括场效应晶体管。进一步地,所述晶体管包括薄膜晶体管。所述晶体管包括氧化物晶体管、硅晶体管。所述发光器件1013包括有机发光二极管、次毫米发光二极管、微型发光二极管等。所述发光器件1013包括阳极1013a、阴极1013c及发光层1013b,所述发光层1013b位于所述阳极1013a及所述阴极1013c之间且位于像素定义层1014的像素定义区内。
可选地,所述显示面板还可包括被动发光显示面板。进一步地,所述面板主体101可包括液晶、驱动阵列等器件。
请继续参阅图1A~图1C,所述显示面板还包括位于所述面板主体101一侧的支撑件102,所述支撑件102用于为所述面板主体101提供支撑。具体地,所述面板主体101包括相对的第一表面100a和第二表面100b,若所述第一表面100a为所述显示面板的显示侧,则所述支撑件102与所述第二表面100b相邻。
所述面板主体101包括第一柔性显示部101a和位于所述第一柔性显示部101a的端部的第二弯折部101b。可选地,所述第二弯折部101b具有固定曲率,以使所述第二弯折部101b保持静态弯折状态,或所述第二弯折部101b具有可变曲率,以使所述第二弯折部101b可实现动态弯折。可选地,在俯视视角下,所述第二弯折部101b位于所述显示面板的底侧,所述显示面板在所述第二弯折部101b可实现显示。
请继续参阅图3A~图3D,所述支撑件102包括支撑层1021,所述支撑层1021包括第一支撑部1021a和第二支撑部1021b,所述第一支撑部1021a支撑于所述第一柔性显示部101a的一侧,所述第二支撑部1021b处于弯折状态,并支撑于所述第二弯折部101b的一侧。
其中,所述第一支撑部1021a的应力缓冲能力小于所述第二支撑部1021b的应力缓冲能力,以通过所述第二支撑部1021b为所述第二弯折部101b提供支撑的同时,提高所述显示面板在所述第二弯折部101b处的耐冲击能力,避免所述第二弯折部101b在受到冲击、撞击等时导致所述显示面板出现显示失效的问题。
进一步地,所述第一支撑部1021a的弹性模量大于所述第二支撑部1021b的弹性模量,以使所述第二支撑部1021b在受到冲击力时发生一定的弹性变形,降低所述冲击力对所述显示面板的影响,而在冲击力消失后,发生变形处可恢复至原始状态,维持对所述第二弯折部101b处的支撑。
可选地,所述第一支撑部1021a的支撑材料包括不锈钢板;所述第二弯折部101b保持静态弯折状态,所述第二支撑部1021b的制备材料包括泡棉等具有缓冲特性的材料。
可选地,以25%压缩荷重(即厚度变形率25%时的回弹力CFD)区分材料的软硬度,值越大代表材质偏硬、值越小代表材质越软。所述第二支撑部1021b的制备材料对应25%压缩荷重时为0.1MPa~1MPa之间。进一步地,所述第二支撑部1021b的制备材料对应的25%压缩荷重时为0.5MPa~1MPa之间。
可选地,所述第一支撑部1021a与所述第二支撑部1021b之间可间隔设置,也可相互连接。
具体地,请继续参阅图3B~图3D,所述支撑层1021还包括位于所述第一支撑部1021a与所述第二支撑部1021b之间的间隔部1021c,以避免所述显示面板在受到冲击时,冲击力由所述第二支撑部1021b传递至所述第一支撑部1021a,对所述第一柔性显示部101a造成影响。
由于在制程中,所述第一支撑部1021a和所述第二支撑部1021b可分步制备在所述第一柔性显示部101a的所述一侧,所述第二支撑部1021b制备于所述第二弯折部101b的所述一侧。因此,在制备所述第一支撑部1021a与所述第二支撑部1021b时,会存在制备精度公差(即第一支撑部1021a制备在所述第一柔性显示部101a的所述一侧,和/或所述第二支撑部1021b制备于所述第二弯折部101b的所述一侧时存在一定的位置偏移),导致所述第一支撑部1021a与所述第二支撑部1021b出现相互干扰的问题。而所述间隔部1021c因位于所述第一支撑部1021a与所述第二支撑部1021b之间,因此,可使所述显示面板消除因制备精度公差导致的所述第一支撑部1021a与所述第二支撑部1021b出现相互干扰的问题。
具体地,所述支撑层1021还包括位于所述第一支撑部1021a和所述第二支撑部1021b之间的连接部1021d,所述连接部1021d位于所述间隔部1021c内,如图3C所示,以通过所述第一支撑部1021a、所述第二支撑部1021b及所述连接部1021d为所述面板主体101提供完整支撑。进一步地,所述连接部1021d的制备材料包括泡棉材料、压感胶、光学胶等材料。
请继续参阅图1A~图1C,当所述第一柔性显示部101a处于弯曲状态时,所述第一柔性显示部101a还包括弯曲部1011a。可选地,所述弯曲部1011a具有固定曲率,以使所述弯曲部1011a保持静态弯折状态,或所述弯曲部1011a具有可变曲率,以使所述弯曲部1011a可实现动态弯折。
可选地,所述弯曲部1011a的弯曲方向与所述第二弯折部101b的弯折方向不同。所述弯曲部1011a可直接与所述第二弯折部101b相邻,或所述第一柔性显示部101a中还包括位于所述弯曲部1011a与所述第二弯折部101b之间的非弯曲部1011d。
可选地,如图4是本申请实施例提供的第一镂空部的结构示意图;请参阅图1A、图3A~图3C及图4,所述第一支撑部1021a包括多个第一镂空部H1,多个所述第一镂空部H1对应所述弯曲部1011a设置,以使所述第一支撑部1021a在实现对所述弯曲部1011a支撑的同时,保证所述弯曲部1011a具有一定的弯折性能。
进一步地,在俯视视角下,每一所述第一镂空部H1的端部均包括圆角设计,以防止所述第一镂空部H1的所述端部在呈直角设计时,因弯曲应力等因素在直角处出现裂纹等问题。具体地,每一所述第一镂空部H1包括第一中间部1011b和位于所述第一中间部1011b两侧的第二端部1011c,在俯视视角下,所述第二端部1011c为弧形或波浪形等。可选地,在俯视视角下,所述第一中间部1011b为直线形、波浪形等形状。
进一步地,每一所述第一镂空部H1具有第一长度方向和与所述第一长度方向相交的第一宽度方向,相邻两所述第一镂空部H1在所述第一长度方向上具有第一间距P1,相邻两所述第一镂空部H1在所述第一宽度方向具有第二间距P2。其中,所述第一长度方向与所述弯曲部1011a的弯曲中心线L1平行,所述第一间距P1可大于或等于0.1mm,所述第二间距P2可大于或等于0.1mm且小于或等于5mm,以使所述第一支撑部1021a兼顾对所述弯曲部1011a支撑性能,以及所述弯曲部1011a的弯折性能。进一步地,所述第一间距P1可大于或等于0.2mm。
进一步地,在俯视视角下,所述弯曲部1011a处于平直状态时,多个所述第一镂空部H1在所述第一宽度方向上具有第一宽度W1,所述弯曲部1011a在所述第一宽度方向上具有第二宽度W2。其中,所述第一宽度W1大于或等于所述第二宽度W2,以使所述弯曲部1011a在弯曲时,降低弯曲应力对所述第一柔性显示部101a中所述弯曲部1011a与所述弯曲部1011a端部相邻部分的交界处的影响。
可选地,在俯视视角下,多个所述第一镂空部H1的排布位置可平齐或相互交错设置。其中,所述平齐设置包括多个所述第一镂空部H1在所述第一长度方向上平齐设置,和/或,在所述第一宽度方向上平齐设置。所述交错设置包括多个所述第一镂空部H1在所述第一长度方向上交错设置,和/或,在所述第一宽度方向上交错设置。
可选地,在俯视视角下,每一所述第一镂空部H1在所述第一宽度方向上具有第三宽度W3,多个所述第一镂空部H1的所述第三宽度W3可相同或不同。进一步地,多个所述第一镂空部H1的所述第三宽度W3随所述第一镂空部H1远离所述弯曲中心线L1的方向逐渐减小。更进一步地,多个所述第一镂空部H1中对应所述第一柔性显示部101a的所述弯曲部1011a和与之相邻的部分的交界处的所述第一镂空部的所述第三宽度W3小于或等于多个所述第一镂空部H1中对应所述弯曲中心线L1处的所述第一镂空部的所述第三宽度W3。
请参阅图5A~图5F是本申请实施例提供的第二镂空部的结构示意图,所述第二支撑部1021b包括多个第二镂空部H2。多个所述第二镂空部H2在受冲击时受到挤压,引起所述第二支撑部1021b的形变,从而消耗冲击能量,有利于进一步改善所述第二支撑部1021b的应力缓冲能力。进一步地,在单位面积内,所述第一镂空部H1的镂空孔的密度和所述第二镂空部H2的镂空孔的密度不同或相同。
可选地,所述支撑层1021还包括位于所述第二镂空部H2内的填充部1021e,所述填充部1021e的硬度大于或等于所述第二支撑部1021b的硬度,以通过所述第二支撑部1021b吸收冲击应力,通过所述填充部1021e降低所述显示面板在所述第二弯折部101b处出现局部变形的几率,在改善所述第二弯折部101b的抗冲击性能的同时,提高所述第二支撑部1021b对所述第二弯折部101b的支撑性能。
可选地,所述填充部1021e的制备材料对应25%压缩荷重时为0.1MPa~1MPa之间。进一步地,所述第二支撑部1021b的制备材料对应25%压缩荷重时为0.2MPa以下,所述填充部1021e的制备材料对应25%压缩荷重时为0.5MPa~1MPa之间。
可选地,在俯视视角下,且所述第二弯折部101b处于平直状态时,多个所述第二镂空部H2的形状包括圆形、圆角矩形、椭圆形、弧形、波浪形等形状。进一步地,在俯视视角下,所述第二镂空部H2的形状为圆形,位于所述第二镂空部H2内的所述填充部1021e亦为圆形,所述第二镂空部的孔径大于或等于0.8mm且小于或等于2mm。
可选地,在所述第二弯折部101b处于平直状态时,每一所述第二镂空部H2具有第二长度方向x2和与所述第二长度方向x2相交的第二宽度方向y2,所述第二宽度方向y2与所述第二弯折部101b的弯折中心线L2平行,沿所述第二宽度方向y2相邻的任意两所述第二镂空部H2之间的距离P3大于或等于1mm且小于或等于3mm,沿所述第二长度方向x2相邻的任意两所述第二镂空部H2之间的距离P4大于或等于1mm且小于或等于3mm,以避免所述第二镂空部H2在所述第二支撑部1021b内的设置密度过密,或过疏,影响所述第二支撑部1021b的抗冲击性能或所述填充部1021e抵抗局部变形的性能。
进一步地,在所述第二弯折部101b处于平直状态时,在沿所述弯折中心线L2延伸的方向,所述第二弯折部101b具有第四宽度W4,在俯视视角下,每一与所述弯折中心线L2相交叠的所述第二镂空部H2沿所述第二宽度方向y2具有第五宽度W5;其中,所述第四宽度W4大于所述第五宽度W5,如图5A~图5B所示;以使所述显示面板在受到冲击、撞击时,通过所述填充部1021e与所述第二支撑部1021b的共同作用,降低冲击力对所述显示面板造成的影响,相较于在所述显示面板受到冲击时,冲击力只作用于所述填充部1021e的情况,可进一步降低冲击力对所述显示面板造成的影响。
可选地,在俯视视角下,多个所述第二镂空部H2的形状不同。进一步地,多个所述第二镂空部H2的延伸方向不同或相同。更进一步地,多个所述第二镂空部H2中远离所述弯折中心线L2的第二镂空部沿所述第二宽度方向y2延伸,如图5C所示,以使在所述第二弯折部101b沿所述弯折中心线L2弯折后处于弯折状态时,位于多个所述第二镂空部H2中远离所述弯折中心线L2的第二镂空部内的所述填充部1021e的表面的弯曲程度较小,降低弯曲应力的对位于多个所述第二镂空部H2中远离所述弯折中心线L2的第二镂空部内的所述填充部1021e的影响。
可选地,多个所述第二镂空部H2中靠近所述弯折中心线L2的第二镂空部H21呈波浪形,并沿所述第二长度方向x2延伸,以增大所述第二镂空部H21与位于所述第二镂空部H21中的所述填充部1021e的接触面积,从而降低弯曲应力对位于所述第二镂空部H21中内的所述填充部1021e的影响,降低位于所述第二镂空部H21中的所述填充部1021e与所述第二支撑部1021b出现剥离的风险。
进一步地,多个所述第二镂空部H2分别位于所述弯折中心线L2两侧,如图5D所示,以避免所述第二弯折部101b处于弯折状态时,弯折应力对所述填充部1021e、所述第二支撑部1021b具有不同的作用力,致使所述填充部1021e与所述第二支撑部1021b出现剥离的问题。
可选地,所述第一镂空部H1与所述第二镂空部H2的形状、尺寸等方面可相同或不同。可选地,多个所述第二镂空部H2可均匀分布,或按特定规律排布。如多个所述第二镂空部H2在所述第二支撑部1021b上的设置密度随远离所述弯折中心线L2的方向逐渐增加,如图5E所示;以使所述显示面板在对应所述弯折中心线L2的部分较所述显示面板对应远离所述弯折中心线L2的部分具有更好的抗冲击性能,使所述显示面板中对应受冲击力影响较大的部分可以有效吸收冲击力,降低冲击应力对显示面板的影响。
可选地,多个所述第二镂空部H2的尺寸可相同或不同,如多个所述第二镂空部H2的尺寸随远离所述弯折中心线L2的方向逐渐增大,如图5E所示,以令所述显示面板对应所述弯折中心线L2的部分的所述第二支撑部1021b的抗冲击性能优于所述填充部1021e的抗局部变形能力,从而更好的吸收作用于所述弯折中心线L2处的冲击应力。
可选地,多个所述第二镂空部H2中的部分所述第二镂空部可从所述第二弯折部101b延伸至所述第一柔性显示部101a,在此不再进行赘述。
可选地,所述第二支撑部1021b还包括第三镂空部H3,如图5F所示,所述第三镂空部H3连接任意两所述第二镂空部H2,所述填充部1021e可位于所述第三镂空部H3内,以在所述显示面板的所述第二弯折部101b受到冲击时,通过所述第二支撑部1021b及位于所述第三镂空部H3内的所述填充部1021e、位于所述第二镂空部H2内的所述填充部1021e将所述冲击力分散,降低单位面积内的受力,进一步提高所述第二弯折部101b处的抗冲击变形能力。
请继续参阅图3A~图3D,所述支撑件102设有贯穿所述第一支撑部1021a的开口,所述第二支撑部1021b位于所述开口内,以使所述第一支撑部1021a和所述第二支撑部1021b共同实现对所述显示面板的支撑。
进一步地,所述第二支撑部1021b的制备材料包括泡棉材料。相对于回弹力CFD(即泡棉在压缩一定比例,并达到力学平衡后,对施加物的一个回应的力)大的泡棉材料,回弹力CFD小的泡棉材料的材质较软。而回弹力CFD与压缩比K成正比。因此,为使所述第二支撑部1021b的具有较好的缓冲性能,使所述第二支撑部1021b的压缩比不超过20%。而由于压缩比K=100%*(h0-h1)/h0;其中,h0表示压缩前的泡棉材料的厚度,h1表示压缩后的泡棉材料的厚度。则可知压缩比K与压缩前的泡棉材料的厚度h0成反比,即h0越大,K越小,回弹力越小,泡棉材料的材质越软,因此可令所述第二支撑部1021b的厚度大于或等于所述第一支撑部1021a的厚度,以使所述第二支撑部1021b在所述显示面板受到挤压或冲击时,实现吸收应力的作用。可选地,所述第二支撑部1021b的厚度为所述第一支撑部1021a厚度的1~1.2倍。
可选地,所述第一支撑部1021a的厚度大于或等于50微米,且小于或等于150微米,所述第二支撑部1021b的厚度大于或等于50微米,且小于或等于180微米。
请继续参阅图1A~图1C及图3A~图3D,所述支撑件102还包括连接层,所述连接层位于所述支撑层1021与所述面板主体101之间。
可选地,所述第一支撑部1021a可采用单层设计,即如图3A~图3B所示的所述支撑层1021包括第一支撑部1021a;也可采用多层设计,即如图3C~图3D所示的所述连接层与所述第一支撑层1021均包括所述第一支撑部1021a。请参阅图3C~图3D,所述支撑件102设有贯穿所述支撑层1021和所述连接层的开口,所述第二支撑部1021b位于所述开口内。进一步地,为使所述第二支撑部1021b具有较好的缓冲性能,使所述第二支撑部1021b的压缩比不超过20%,令所述第二支撑部1021b的厚度大于或等于所述第一支撑部1021a与所述连接层的厚度之和。
可选地,所述第二支撑部1021b的厚度为所述第一支撑部1021a厚度与所述连接层的厚度之和的1~1.2倍。
可选地,所述连接层包括第一连接层1022和第二连接层1023,所述第一连接层1022位于所述第二连接层1023与所述支撑层1021之间,所述第二连接层1023位于所述第一连接层1022与所述面板主体101之间。进一步地,所述第一连接层1022的硬度小于所述第二支撑部1021b的硬度。可选地,所述第一连接层1022的制备材料对应25%压缩荷重时为0.2MPa以下,所述第二支撑部1021b的制备材料对应25%压缩荷重时为0.5MPa~1MPa之间。可选地,所述第二连接层1023、所述支撑层1021的制备材料与所述第一连接层1022的制备材料不同。具体地,所述第一连接层1022、所述第二支撑部1021b的制备材料包括硬度不同的泡棉材料;进一步地,所述泡棉材料包括聚乙烯泡棉(如PE泡棉、EVA泡棉等)、橡胶泡棉(如CR泡棉、EPDM泡棉等)等。
可选地,所述开口可部分贯穿所述连接层,也可全部贯穿所述连接层。具体地,在所述开口部分贯穿所述连接层时,所述开口可只贯穿所述第一连接层1022,此时为保证所述第二支撑部1021b的压缩比不超过20%,所述第二支撑部1021b的厚度为所述第一支撑部1021a厚度与所述第一连接层1022的厚度之和的1~1.2倍。可选地,所述第一支撑部1021a的厚度大于或等于50微米,且小于或等于150微米,所述第一连接层1022的厚度大于或等于50微米,且小于或等于100微米,则所述第二支撑部1021b的厚度大于或等于100微米,且小于或等于300微米。
与之相似的,在所述开口全部贯穿所述连接层时,为保证所述第二支撑部1021b的压缩比不超过20%,所述第二支撑部1021b的厚度为所述第一支撑部1021a与所述第一连接层1022、所述第二连接层1023的厚度之和的1~1.2倍。
可选地,所述间隔部1021c可设置与所述第一连接层1022、所述第一支撑部1021a与所述第二支撑部1021b之间,如图3D所示,以通过所述第二连接层1023、及所述第二支撑部1021b提供完整支撑,并通过所述间隔部1021c降低弯曲应力对所述第二支撑部1021b的影响。
请继续参阅图1A~图1C,所述面板主体101还包括第三显示部101c,所述第二弯折部101b位于所述第一柔性显示部101a与所述第三显示部101c之间,所述第三显示部101c与所述第一柔性显示部101a相对,所述第一支撑部1021a支撑于所述第一柔性显示部101a的所述一侧和所述第三显示部101c的靠近所述第一柔性显示部101a的一侧。其中,所述第三显示部101c与所述第一柔性显示部101a相对表示:在俯视视角下,所述第三显示部101c与所述第一柔性显示部101a部分重合。即在所述第二弯折部101b处于弯折状态时,所述第三显示部101c被弯折至所述第一柔性显示部101a的底部。
进一步地,所述第二支撑部1021b的相对的两端部分别支撑于所述第一柔性显示部101a的所述一侧和所述第三显示部101c的所述一侧,以使所述第二支撑部1021b可提高所述第二弯折部101b的抗冲击性能的同时,降低冲击力对所述第一柔性显示部101a及所述第三显示部101c的影响。
可选地,所述显示面板还包括邦定部,所述邦定部位于所述第三显示部101c远离所述第二弯折部101b的一端,所述显示面板在所述邦定部包括用于使所述显示面板发光的驱动芯片、电路板等器件。
可选地,所述显示面板可包括多个所述第二弯折部101b,如图1C所示。进一步地,所述显示面板还包括第四显示部101d,所述第四显示部101d位于相邻两所述第二弯折部101b之间。其中,所述第四显示部101d可包括所述弯曲部1011a,所述第四显示部101d也可为保持平直状态的显示部。若在俯视视角下,所述第二弯折部101b及所述第四显示部101d均靠近所述显示面板底侧,则所述第二支撑部1021b可对应所述第二弯折部101b及所述第四显示部101d设置。
请继续参阅图1A~图1C,所述显示面板还包括位于所述面板主体101上的偏光片103、光学胶104、封装盖板105等。可选地,所述封装盖板105包括透明聚酰亚胺薄膜或超薄玻璃;所述显示面板还包括传感器触控电极、滤色片、传感器等未示出部分。进一步地,所述显示面板还包括承载所述面板主体101的中框106等。
本申请还提供一种显示装置,所述显示装置包括上述的显示面板。
以上对本申请实施例所提供的一种显示面板及显示装置进行了详细介绍,本文中应用了具体个例对本申请的原理及实施方式进行了阐述,以上实施例的说明只是用于帮助理解本申请的方法及其核心思想;同时,对于本领域的技术人员,依据本申请的思想,在具体实施方式及应用范围上均会有改变之处,综上所述,本说明书内容不应理解为对本申请的限制。

Claims (20)

  1. 一种显示面板,其中,包括:
    面板主体,包括第一柔性显示部和位于所述第一柔性显示部的端部的第二弯折部;以及,
    支撑件,包括支撑层,所述支撑层包括第一支撑部和第二支撑部,所述第一支撑部支撑于所述第一柔性显示部的一侧,所述第二支撑部处于弯折状态,并支撑于所述第二弯折部的一侧;
    其中,所述第一支撑部的应力缓冲能力小于所述第二支撑部的应力缓冲能力。
  2. 根据权利要求1所述的显示面板,其中,所述第一支撑部的弹性模量大于所述第二支撑部的弹性模量。
  3. 根据权利要求1所述的显示面板,其中,所述第一支撑部的材料包括不锈钢板,所述第二支撑部的制备材料包括泡棉。
  4. 根据权利要求1所述的显示面板,其中,所述第一支撑部与所述第二支撑部之间间隔设置。
  5. 根据权利要求1所述的显示面板,其中,所述第一支撑部与所述第二支撑部之间相互连接。
  6. 根据权利要求1所述的显示面板,其中,所述支撑件设有贯穿所述第一支撑部的开口,所述第二支撑部位于所述开口内。
  7. 根据权利要求6所述的显示面板,其中,所述第二支撑部的厚度大于或等于所述第一支撑部的厚度。
  8. 根据权利要求7所述的显示面板,其中,所述第二支撑部的厚度为所述第一支撑部厚度的1倍~1.2倍。
  9. 根据权利要求1所述的显示面板,其中,所述支撑件还包括位于所述支撑层与所述面板主体之间的连接层。
  10. 根据权利要求9所述的显示面板,其中,所述支撑件设有贯穿所述支撑层和所述连接层的开口,所述第二支撑部位于所述开口内。
  11. 根据权利要求10所述的显示面板,其中,所述连接层包括第一连接层和第二连接层,所述第一连接层位于所述第二连接层与所述支撑层之间,所述第二连接层位于所述第一连接层与所述面板主体之间。
  12. 根据权利要求10所述的显示面板,其中,所述第二支撑部的厚度为所述第一支撑部厚度与所述连接层的厚度之和的1~1.2倍。
  13. 根据权利要求1所述的显示面板,其中,当所述第一柔性显示部处于弯曲状态时,所述第一柔性显示部包括弯曲部,所述弯曲部的弯曲方向与所述第二弯折部的弯折方向不同。
  14. 根据权利要求1所述的显示面板,其中,所述面板主体还包括第三显示部,所述第二弯折部位于所述第一柔性显示部与所述第三显示部之间,所述第三显示部与所述第一柔性显示部相对,所述第一支撑部支撑于所述第一柔性显示部的所述一侧和所述第三显示部的靠近所述第一柔性显示部的一侧。
  15. 根据权利要求14所述的显示面板,其中,所述第二支撑部的相对的两端部分别支撑于所述第一柔性显示部的所述一侧和所述第三显示部的所述一侧。
  16. 根据权利要求1所述的显示面板,其中,所述第一支撑部包括多个第一镂空部,所述第二支撑部包括第二镂空部,在单位面积内,所述第一镂空部的镂空孔的密度和所述第二镂空部的镂空孔的密度不同。
  17. 根据权利要求16所述的显示面板,其中,所述支撑层还包括位于所述第二镂空部内的填充部,其中,所述第二支撑部的硬度小于所述填充部的硬度。
  18. 一种显示装置,其中,包括显示面板,所述显示面板包括:
    面板主体,包括第一柔性显示部和位于所述第一柔性显示部的端部的第二弯折部;以及,
    支撑件,包括支撑层,所述支撑层包括第一支撑部和第二支撑部,所述第一支撑部支撑于所述第一柔性显示部的一侧,所述第二支撑部处于弯折状态,并支撑于所述第二弯折部的一侧;
    其中,所述第一支撑部的应力缓冲能力小于所述第二支撑部的应力缓冲能力。
  19. 根据权利要求18所述的显示装置,其中,所述第一支撑部的弹性模量大于所述第二支撑部的弹性模量。
  20. 根据权利要求18所述的显示装置,其中,所述支撑件设有贯穿所述第一支撑部的开口,所述第二支撑部位于所述开口内。
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